<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>

            <!-- 登录表单区 -->
            <el-form  label-width="0px" class="login_form" ref="loginFromRef" :model="loginForm" :rules="loginFormRules">
            
            <el-form-item prop="username">
            <el-input prefix-icon="el-icon-user" v-model="loginForm.username"></el-input>
            </el-form-item>

            <el-form-item prop="password">
            <el-input prefix-icon="el-icon-lock" v-model="loginForm.password" show-password></el-input>
            </el-form-item>

            <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item>

            </el-form>
        </div>
    </div>
</template>

<script>

export default {
    data() {
        return {
            loginForm: {
                username:'admin',
                password:'123456'
            },
            //表单验证规则
            loginFormRules: {
                username:[
                    { required: true, message: '请输入登录名称', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }    
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' } 
                ]
            }
        };
    },

    methods: {
        resetLoginForm() {
            this.$refs.loginFromRef.resetFields();
        },
        login() {
            this.$refs.loginFromRef.validate(async (valid) => {
                if(!valid) return;
                const {data : res} = await this.$http.post("login",this.loginForm)
                console.log(res)
                if (res.meta.status !== 200) return this.$message.error('登陆失败')
                this.$message.success('登陆成功')

                window.sessionStorage.setItem('token',res.data.token)

                this.$router.push('/home')
            });
        }
    }
};
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}

.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);

    .avatar_box{
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left:50%;
        transform: translate(-50%,-50%);
        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;

        }
    }
}

.btns{
    display: flex;
    justify-content: flex-end;
}

.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
</style>